Make NGSS come alive with this 3rd grade science story about gears, bells, and the swinging secret behind the world’s most reliable clocks. Aligned to 3-PS2-2, The Clock That Ruled the Town is a narrative science lesson that takes students to a time before watches and phones — when the entire town listened for a bell, powered by a pendulum, to know the hour. This Story: The Clock That Ruled the Town Standard: 3-PS2-2 Students explore how repeating motion patterns — like a pendulum swinging —